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CVE-2021-33909

Status Candidate

Overview

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

Related Files

Red Hat Security Advisory 2021-2732-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2732-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-28374, CVE-2021-33034, CVE-2021-3347, CVE-2021-33909
MD5 | f83a52c33ab9bda403a34afb838ce647
Red Hat Security Advisory 2021-2715-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2715-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-32399, CVE-2021-33909
MD5 | 47eb45299bf915fdded8fb1ca5d2b19c
Red Hat Security Advisory 2021-2735-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2735-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include integer overflow and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-12362, CVE-2021-3347, CVE-2021-33909
MD5 | f875a8af1fa7cec89ebb496d8dc6d243
Red Hat Security Advisory 2021-2733-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2733-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-33034, CVE-2021-3347, CVE-2021-33909
MD5 | 013bf36122c4d40b22e2fb6dd480f230
Red Hat Security Advisory 2021-2734-01
Posted Jul 20, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2734-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-33034, CVE-2021-33909
MD5 | e0f2d4913c50f50ba3ff1757d668114f
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